House Minority Leader Nancy Pelosi (D-Calif.) cast doubt on Friday on the idea that allowing the top marginal tax rate to rise merely from 35 to 37 percent would raise sufficient revenue to significantly address the nation's debt problem.

The top rate, on income over $250,000, now stands at 35 percent and will rise automatically to 39.6 percent in January without congressional action. Democrats have insisted that the top rate increase as part of a deal to avert the year-end fiscal cliff. President Obama has signaled that he could compromise on a number somewhere between the two -- and there has been some discussion on the Hill about looking at a deal around 37 percent.

Asked if that would produce enough revenue, Pelosi told reporters, "No. I don’t know that. That’s why we should be here to have kind of review of the facts."